import json
from multiprocessing import Pool
import requests
from requests.exceptions import RequestException
import re
def get_one_page(url):
    try:
        response = requests.get(url)
        if response.status_code == 200:
            return  response.text
        return  None
    except RequestException:
        return None
def parse_one_page(html):
    patten = re.compile('<dd>.*?board-index.*?>(\d+)</i>.*?data-src="(.*?)".*?name"><a'
                        +'.*?>(.*?)</a>.*?star">(.*?)</p>.*?releasetime">(.*?)</p>'
                        +'.*?integer">(.*?)</i>.*?fraction">(.*?)</i>.*?</dd>',re.S)
    items = re.findall(patten,html)
    for item in items:
        yield  {
            'index': item[0],
            'image': item[1],
            'title': item[2],
            'actor': item[3].strip()[3:],
            'time':  item[4].strip()[5:],
            'score': item[5]+item[6]
        }
def write_to_file(content):
    with open('result.txt','a',encoding='utf-8') as  f:
        f.write(json.dumps(content,ensure_ascii=False) + '\n')
        f.close()
def main(offset):
    url = "http://maoyan.com/board/4?offset=" + str(offset)
    html = get_one_page(url)
    for item in parse_one_page(html):
        print (item)
        write_to_file(item)
if  __name__ == "__main__":
     pool = Pool()
     pool.map(main,[i*10 for i in range(10)])
     pool.close()
     pool.join()



